GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2007 🢒 STS 🢒 Suspension 🢒 Rear Suspension 🢒 Coil Spring Replacement

Removal Procedure
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation .
  3. Disconnect the automatic level control sensor link from the upper control arm.

    4. Object Number: 926577 Size: SH
  4. Disconnect the head lamp adjustment link from the upper control arm.
  5. Support and raise the lower control arm using a suitable jack.
  6. Remove the shock absorber lower mounting bolt.
  7. Lower the lower control arm and remove the support.
  8. Support the rear frame with a suitable jack.

    9. Important: Remove the frame bolts from the side that the coil spring is being replaced on.


    Object Number: 977459 Size: SH
  9. Remove the frame to body side mounting bolts and washers.

    10. Important: Lower the frame far enough to remove the coil spring without going past the guide pins.

  10. Lower the side of the frame.
  11. Remove the coil spring from the vehicle.

Installation Procedure
  1. Install the coil spring to the vehicle.

    2. Object Number: 977459 Size: SH
  2. Raise the frame.

    3. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the frame to body mounting bolts and washers.

    4. Tighten

        • Tighten the front bolts to 265 N·m (195 lb ft).
        • Tighten the rear bolts to 191 N·m (140 lb ft).
  4. Remove the jack from the vehicle.
  5. Install a suitable jack under the lower control arm.

    6. Object Number: 926577 Size: SH
  6. Using the jack raise the lower control arm until the shock absorber aligns with the knuckle.
  7. Install the shock absorber lower retaining bolt.

    8. Tighten
    Tighten the bolt to 150 N·m (111 lb ft).

  8. Remove the jack from the vehicle.
  9. Connect the head lamp adjustment link to the upper control arm.
  10. Connect the automatic level control sensor link to the upper control arm.
  11. Install the tire and wheel. Refer to Tire and Wheel Removal and Installation .
  12. Lower the vehicle.